What is the self-discharge rate?

The battery can be stored for up to 6 months. For higher temperatures, the storage interval should be shorter.

Solar Gel Battery 12V 50ah Deep Cycle Maintenance Free Battery for DC Power Supply

Name: Solar Gel Battery 12V 50ah Deep Cycle Maintenance Free Battery for DC Power Supply
Brand: Shenzhen Sunstone Power Technology Co., Ltd
SKU: 2099182815

Guangdong, ChinaShenzhen Sunstone Power Technology Co., Ltd

US$5.00-70.00

100 Pieces

Product profile

Customization

Available

Type

Lead-Acid Batteries

Usage

UPS, Electric Power, Lighting, Boat

Model NO.

MLG12-50

Nominal Voltage

12V

Discharge Rate

Low Discharge Rate

Shape

Square Battery

Electrolyte

Acid

Installation

Fixed

Rechargeable

Chargeable

Nominal Capacity

50ah

Approx Weight

16.4kg

Terminal

T5 or F7

Sealed Type

Sealed

Cycle Use

Initinal Charging Current Less Than 60A

Standby Use

13.5~13.8V

Self Discharge

Stored for up to 6 Months

Transport Package

Factory Carton+Pallet

Specification

228*137*210(216)mm

Trademark

Sunstone Power

Origin

China

HS Code

85072000

Production Capacity

20000PCS/Week

Key features

Maintenance-Free Operation: Sealed lead-acid design requires no water addition or maintenance.

High Temperature Resistance: Optimized for frequent cycling and high-temperature applications like PVs.

Advanced Silica Technology: Uses European silica and special filling tech for complete electrolyte penetration.

Low Self-Discharge: Can be stored for up to 6 months with minimal capacity loss.

Flame Retardant Case: ABS case with Flame Retardant V0 rating for enhanced safety.

Global Certification: ISO9001, ISO14001, CE, IEC, VDS, and RISTI certified.

Fast Global Delivery: Warehouses in Germany and Indonesia ensure fast delivery to Europe and Asia.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceIn-stock CapacityFast Delivery

Shenzhen Sunstone Power Technology Co., Ltd

Guangdong, China

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2003-07-08Nearest Port: ShenzhenAverage Response Time: ≤0.13hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummarySunstone Power Industry Co., Ltd. is identified as a factory and reports two China-based production facilities covering lead-acid and lithium batteries, with overseas entities in Germany and Indonesia. It has 20 years of stated energy-product experience, exports 90% of sales, and supplies customers in more than 100 countries. Reported certifications include ISO 9001, ISO 14001, and CE. The supplier offers broad customization, inventory capability, and overseas warehouse services. Production-related evidence includes one-month peak and off-season lead times, but no annual output quantity is provided; the available output field contains a monetary figure and is therefore omitted. Weaknesses or uncertainties include no written supplier-approval, corrective-action, complaint-handling, or service-assessment procedures, and unknown outsourcing-procedure and contract statuses. No specific customer cases are provided.

Supplier typeThe supplier is explicitly classified as a factory and is described as operating two factories in China: a lead-acid battery factory in Jiangxi and a lithium battery factory in Guangdong. Overseas companies in Germany and Indonesia indicate an international operating structure, but the supplied evidence does not establish whether all production is directly controlled by the stated company.

CertificationsThe supplier reports CE product compliance certification and ISO 9001 and ISO 14001 management-system certifications. These certifications provide explicit evidence of compliance and management-system credentials, although the specific certified products or certificate validity periods are not stated.

R&D capabilityThe supplier has a lithium battery production factory, offers multiple battery technologies including lithium-ion and LiFePO4 products, and reports R&D engineer experience of 6–10 years. These facts support product-development capability, but no evidence quantifies new-product launches, patents, dedicated R&D investment, or innovation outcomes.

Production capacityThe supplier reports two production factories, 20 years of energy-product experience, worldwide distribution, and one-month lead times in both peak and off-season periods. It also reports 6–10 quality-control staff and 6–10 years of R&D-engineer experience; however, annual production volume cannot be assessed because the provided output field is monetary and no unit-based capacity is stated.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of a broad customization service range.

Product Q&A

Q:What is the minimum order quantity?

The minimum order quantity is not specified in the product description; please contact the supplier for details.

Q:What are the payment terms?

Payment methods include T/T, Western Union, PayPal, and LC. Price terms are FOB Shenzhen, CFR, or CIF.

Q:How long is the delivery time?

Products will be sent within 30-35 days after receiving the bank receipt.

Q:What certifications does the battery have?

The battery is ISO9001 and ISO14001 approved, and many products have obtained CE, IEC, VDS, and RISTI certificates.

Q:Can the battery be customized?

Customization options include nominal capacity, weight, terminal type, and charging parameters. Specific custom requests should be discussed with the supplier.